{"cache_age":"3600","width":"920","description":"A sand dam is a reinforced concrete wall built on bedrock across a seasonal sandy river to collect water and sand during the rainy season and store it for use during the dry season. When it rains, the dam captures soil-laden water behind it - the sand in the water sinks to the bottom, whilst the silt remains suspended in the water. HAO has found sand dams to be the most cost-effective method of water harvesting, conservation and recharging in dry land and very remote environments.","html":"<iframe src='https:\/\/www.globalgiving.org\/dy\/v2\/oembed\/?format=html&url=https%3A%2F%2Fwww.globalgiving.org%2Fprojects%2Fsand-dams-climate-change-and-hope%2F' style='width:920px;height:613px;border:0;'><\/iframe>","type":"rich","title":"Sand Dams, Climate Change, and Hope on GlobalGiving","thumbnail_url":"https:\/\/www.globalgiving.org\/pfil\/52134\/pict_large.jpg","version":"1.0","height":"613"}